Finding the Fourth Proportional to 488,621.08, 674,626.62 and 305,139.88
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Solution
The fourth proportional to 488,621.08, 674,626.62 and 305,139.88 is: 421,298.82
Step by Step Solution
- Step 1: Write the proportion equation
488,621.08 : 674,626.62 = 305,139.88 : x - Step 2: Convert to fraction form
488,621.08/674,626.62 = 305,139.88/x - Step 3: Cross multiply
488,621.08x = 674,626.62 × 305,139.88 - Step 4: Simplify right side
488,621.08x = 205,855,485,871.61 - Step 5: Solve for x
x = 205,855,485,871.61/488,621.08 - Step 6: Final answer
x = 421,298.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.